Nut-lock.



No. 585,76l.

W. HANBOEK.

NUT LOOK.

(in Model.)

(Application filed Inn. 14, 1901.)

Patented Nov. 5, l90l.

W'ALTER HANCOCK, OF \VOODBURY, TENNESSEE.

NUT-LQCK.

SPECIFICATION forming part of Letters Patent N 0. 685,761, datedNovember 5, 1901.

Application filed January 14, 1901. Serial No. 43,236, (No model.)

To CLZZ whom it may concern-.-

Be it known that I, WALTER HANCOCK, a citizen of the United States,residing at lVoodbury, in the county of Cannon and State of Tennessee,have invented a new and useful Nut-Lock, of which the following is aspecification. 1

This invention relates to nut-locks, and has for its object to providean improved ratchet device for interlocking the nut with the bolt insuch manner as to prevent removal of the nut, and, furthermore, to havethe ratchet connected to the nut in an improved manner, so as to preventthe same from workingloose and to dispense with separate fastenings.

lVith these and other objects in View the present invention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the accompanying drawings, and particularlypointed out in the appended claims, it being understood that changes inthe form, proportion, size, and minor details may be made within thescope of the claims without departing from the spirit or sacrificing anyof the advantages of the invention,

In the drawings, Figure 1 is a perspective view ofa bolt and a nothaving the present improvements applied thereto. Fig. 2 is a transversesectional view thereof. Fig. 3 is a detail perspective view of thespring-pawl or ratchet removed from the nut. Fig. 4: is a detailperspective view illustrating the application of the ratchet to the nut.

Like characters of reference designate corresponding parts in all of thefigures of the drawings.

Referring to the drawings, 1 designates an ordinary bolt, and 2 theusual nut fitted thereto, the bolt also being provided with a pluralityof longitudinal grooves 3, extending across the screw-threaded portionthereof.

Upon the outer-face of the not there is provided a lug or projection 4:,which is disposed substantially radial with respect to the boltopeningand located adjacent to the outer marginal edge of the nut, preferablyin one corner thereof. This lug or projection is split or bifurcatedlongitudinally, which is radial with respect to the bolt-opening of thenut, as best indicated in Fig. at of the drawings, for the reception ofthe outer or rear end of the pawl or ratchet-dog 5, which is in the formof a spring-strip of substantially oblong shape. The rear end of the dogor pawl is provided with an opening 6, preferably in the form of alongitudinal slot, located midway between the opposite longitudinaledges of the dog. It is this slotted end of the dog that is insertedinto the slot or bi furcation of the lug or projection, after which theopposite sides of the lug are subjected to pressure, so as to force theopposite sides of the bifurcation snugly against the dog and also intothe slot thereof, as shown at 7 in Fig. 2, whereby the dog is firmly andconveniently secured to the nut without the employment of separatefastenings, which sooner or later work loose and render the deviceimperfect and useless. It will be understood that the free end of thedog or pawl rests against the outer periphery of the bolt, so as totravel over the same during the setting of the nut upon the bolt, andwill drop into one of the slots to prevent unscrewing of the nut. Anysuitable implement may be inserted beneath the free end of the pawl ordog to lift the same out of a groove, and thereby permit of the removalof the nut.

From the foregoing description it will be seen that the spring-pawlisconnected to the nut in a simple and durable manner, so as to preventthe pawl from working loose as it travels around a bolt and snaps intothe grooves thereof and is pried out of said grooves to permit of theremoval of the nut. Moreover, there is no opening to weaken the nut andto collect dirt, which would interfere with the operation of the pawl.

That is claimed is- 1. A nut, having a split or bifurcated lug orprojection, and a spring-pawl having one end provided with an opening,which end is inserted into the split or bifurcation of the lug, and thewalls of the latter are pressed into contact with the opposite sides ofthe pawl and into the opening thereof, thereby forming a rigidconnection between the end of the pawl and the lug.

2. A nut, having a substantially radial lug or projection locatedadjacent to the outer marginal edge thereof and upon its outer face,

said lug being split or bifurcated longitudinally, and a spring-pawlhaving its rear end provided with a longitudinal slot and inserted intothe bifurcation or slot of the ing, and the latter pressed in oppositedirections against the spring pawl and into the slot thereof, theopposite free end of the pawl projecting slightly within the margin ofthe boltopening of the nut.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses;

WALTER HANCOCK. WVitnesses:

S. WV. WHARTON, J. A. H. THOMPSON.

